Silicosis, elevation, they had all the fun stuff to deal with. I wonder if they did the 'company town' thing there like they did back in the hills where I'm from? I only drove through Leadville on my way to Aspen but it seemed to have the same decaying, depressing, desperate for the tourist dollar vibe that my hometown has. You ever do the Leadville 100?
I was lucky, nobody in my family gave a rat's ass for religion and we were surrounded by people who overindulged in it. Kinda like hanging out in a bar when you're not drinking, it was a good object lesson in why you don't want to participate.
RE: Half an inch max, accumulation unlikely